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Paper Abstract and Keywords
Presentation 2020-12-18 10:25
Prototype of Analog Self-interference Cancellation Circuit for Multi-band Full-duplex Base Station
Takeshi Matsumura, Fumihide Kojima (NICT) RCS2020-144
Abstract (in Japanese) (See Japanese page) 
(in English) 5G (5th Generation mobile communication system) has been commercialized, and it is expected that QoE (Quality of Experi-ence) will be significantly improved by the eMBB (enhanced Mobile Broadband) technology. Meanwhile, communication traffic is continuously increasing, and thus, even if 28 GHz band is widely used, there still has a serious problem of spectrum resource shortage. Therefore, it is necessary to introduce new technologies for expanding the system capacity in B5G (Beyond 5G). The authors have researched and developed an IBFD (In-Band Full-Duplex)-based cellular system for improving spec-trum efficiency. In general, IBFD induces an SI (Self-Interference) to the receiver and degrades the communication quality. In this study, we implement an analog SI canceller in the IF (Intermediate Frequency) circuit of the IF-based RF (Radio Frequen-cy) front-end of the multi-band base station and apply IBFD to the communication in the 28 GHz band. Also, we prototype an RF front-end and evaluate the SI cancellation performance for 4.7 GHz and 28 GHz bands assuming Local 5G.
Keyword (in Japanese) (See Japanese page) 
(in English) Beyond 5G / IBFD (In-Band Full-Duplex) / Local 5G / Self-interference cancellation circuit / Multi-band / Sub-6 GHz / RF circuit / 28 GHz  
Reference Info. IEICE Tech. Rep., vol. 120, no. 298, RCS2020-144, pp. 54-59, Dec. 2020.
Paper # RCS2020-144 
Date of Issue 2020-12-10 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2020-144

Conference Information
Committee NS RCS  
Conference Date 2020-12-17 - 2020-12-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Multi-hop/Relay/Cooperation, Disaster-resistant wireless network, Sensor/Mesh network, Ad-hoc network, D2D/M2M, Wireless network coding, Handover/AP switching/Connected cell control/Load balancing among base stations/Mobile network dynamic reconfiguration, QoS/QoE assurance, Wireless VoIP, IoT, Edge computing, etc. 
Paper Information
Registration To RCS 
Conference Code 2020-12-NS-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Prototype of Analog Self-interference Cancellation Circuit for Multi-band Full-duplex Base Station 
Sub Title (in English)  
Keyword(1) Beyond 5G  
Keyword(2) IBFD (In-Band Full-Duplex)  
Keyword(3) Local 5G  
Keyword(4) Self-interference cancellation circuit  
Keyword(5) Multi-band  
Keyword(6) Sub-6 GHz  
Keyword(7) RF circuit  
Keyword(8) 28 GHz  
1st Author's Name Takeshi Matsumura  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Fumihide Kojima  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker
Date Time 2020-12-18 10:25:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2020-144 
Volume (vol) IEICE-120 
Number (no) no.298 
Page pp.54-59 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2020-12-10 


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